G3s make a couple of appearances. Mary uses her laptop to research the progress of the radiation and to communicate with Peter. A solar-powered G3 in an Anchorage newsroom raises the hopes of the submarine's crew with its garbled transmissions.

Computer hacker Finch is hired to prevent knowledge of the impending disaster from getting out and causing public panic. He does this, and later leaks the story after the success of the mission to the Earth's core using his Powerbook G3.